Memory system of data processor

Application Number: 00108798
Application Date: 2000.06.01
Publication Number: 1276564
Publication Date: 2000.12.13
Priority Information: 1999/6/3 US 09/325405
International: G06F12/08;G06F9/06
Applicant(s) Name: IBM Corp.
Inventor(s) Name: J. Madhalozzo;Jr.;G. F. Mcbriti;J. M. Hibe
Patent Agency Code: 72001
Patent Agent: liang yong
Abstract There is provided a system for dynamically resynchronizing a storage system made up of a plurality of mirrored logical volumes respectively divided into a plurality of mirrored logical data partitions in the event of a system failure. Immediately after the correction of the problem causing the failure, meals start to resynchronize the plurality of logical volumes but without waiting for the resynchronization to be completed; means access data from a data partition in one of said logical volumes. Then there are means for determining whether the portion of the logical volume containing the accessed partition has already been resynchronized, together with means responsive to these determining means for replacing the corresponding data in the other mirrored partitions in the logical volume with the accessed data, in the event that the portion of the logical volume has not been resynchronized.